Jacob Murray, 12, of Miller South School for the Visual and Performing Arts, wins a heat in super stock during the Fourth Annual Gravity Racing Challenge Saturday at Derby Downs in Akron. The race promoted the S.T.E.M. initiative in area schools to help increase students' interest in the fields of science, technology, engineering and math. (Karen Schiely/Akron Beacon Journal)

Dorian Keys, a fourth grader at Seiberling Elementary School in Akron, descends the hill during an early super stock heat in the Fourth Annual Gravity Racing Challenge Saturday at Derby Downs in Akron. The race promoted the S.T.E.M. initiative in area schools to help increase students' interest in the fields of science, technology, engineering and math. (Karen Schiely/Akron Beacon Journal)

John Roddy, a 10th grader at Independence High School, prepares to descend the hill in a super stock heat during the Fourth Annual Gravity Racing Challenge Saturday at Derby Downs in Akron. The race promoted the S.T.E.M. initiative in area schools to help increase students' interest in the fields of science, technology, engineering and math. (Karen Schiely/Akron Beacon Journal)

Sam Madden (left), 13, of Miller South School for the Visual and Performing Arts, hugs teammate Jacob Murray, 12, after Jacob won a heat in super stock during the Fourth Annual Gravity Racing Challenge Saturday at Derby Downs in Akron. The race promoted the S.T.E.M. initiative in area schools to help increase students' interest in the fields of science, technology, engineering and math. (Karen Schiely/Akron Beacon Journal)

Armon Cooke, a seventh grader at National Inventors Hall of Fame School Center for Learning, prepares to descend the hill in an early heat of super stock during the Fourth Annual Gravity Racing Challenge Saturday at Derby Downs in Akron. The race promoted the S.T.E.M. initiative in area schools to help increase students' interest in the fields of science, technology, engineering and math. (Karen Schiely/Akron Beacon Journal)